On the Bed Colour in the Bind Wing o/Catocala. 445 



spinous dorsal blackish ; soft dorsal, anal^ and caudal dusky, 

 obscurel^y spotted at the base. 



The above description is based on a single specimen, 

 104 mm. in total length, from the Rio Verde. Smaller 

 examples (40-55 mm.) have a more slender body (depth ^5-3 

 in the length). 



Cichlosuma Bartoni (p. 327). 

 The synonymy of this species should read : — 



Acara Bartoni, Bean, Proc. U.S. Nat. Mus. 1892, p. 2SG, pi. xliv. iag. 3. 



Cichlasoma Bartani, Jord. & Everm. Bull. U.S. Nat. Mus. xlvii. 1898, 

 p. 1615, fi":. 587 ; Pellegr. M(5m. Soc. Zool. France, xvi. 1903, p. 206 

 (1904) ; Meek, Zool. Pub. Columbian Mus. v. 19J4, fig. 68. 



Cichhmma Bartoni (part.), Regan, supra, p. 327. 



Three young examples of this species, 53-7.2 mm. in total 

 length, from the Rio Verde, received as C. Steindachneri, 

 differ from that species, which they resemble in coloration, 

 in the larger head (2i in the length), more produced snout, 

 and larger and more oblique mouth. Scales 32 j^, 2^^ be- 

 tween lateral line and base of anterior part of soft dorsal. 

 Dorsal XVI 10-11, the last spine ^ the length of head. 

 Anal V 8. The coloration is similar to that of the adult 

 example figured by Reau, but the body is not so deep. 



Cichlasoma octofasciatum (p. 331). 



A series of specimens received, as C. Hedricki includes a 

 small example in every M^ay similar to the type of the species. 



Herichthijs cyanoguttatus (p. 4341. 



Entirely similar examples have been received under the 

 names Cichlasoma cyanogutlatum and Neeiroplus carpintis. 

 My opinion as to the identity of these species is thus 

 confirmed. 



LT. — A New Explanation of the Red Colour in the Hind 

 Wing of Catocala, Schr. By Ch, SchAPOSCHNIKOW *. 



The question as to how the development of the red colour in 

 the hind wing of Catocala is to be explained has not yet, in 

 the literature with which 1 am acquainted, been dealt with 



* Translated by E. E. Austen from the ' Biologisches Ccntralblatt,' 

 xxiv. Bd. (1904) pp. 514-520. 



